Mercedes W213 C257 Diesel AdBlue Additive Fuel Tank Reservoir A2134709301

Mercedes W213 C257 Diesel AdBlue Additive Fuel Tank Reservoir is a specialized component of the Exhaust gas cleaning parts system, designed for diesel engines. It is responsible for storing and supplying the AdBlue solution, which enables the effective reduction of nitrogen oxides in modern diesel units, supporting the efficient operation of the SCR system.

Specifications and technical data

• SKU: A2134709301
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2134709301
• Substitutable numbers: A2134709301, A 213 470 93 01
• Fuel type: Diesel
• Category: Diesel Exhaust Fluid System Parts

Purpose and function in the exhaust gas cleaning system

The presented Mercedes W213 C257 Diesel AdBlue Additive Fuel Tank Reservoir is dedicated to Mercedes E-Class W213 generation and CLS C257 generation models with a Diesel engine. This component works with the selective catalytic reduction system, ensuring proper dosing of the AdBlue fluid into the exhaust stream. A properly functioning reservoir is crucial for maintaining the vehicle's compliance with emission standards and for the stable operation of the power unit in both emergency and standard modes.

In the event of faults such as AdBlue system error messages, engine power limitation, or starting problems after exceeding the mileage limit, replacing the additive reservoir is one of the basic diagnostic and repair steps in a Mercedes vehicle service.

Benefits of using an original Mercedes component

Using an original Mercedes W213 C257 Diesel AdBlue Additive Fuel Tank Reservoir in the exhaust gas cleaning system provides a number of practical benefits:

• Full integration with the vehicle's electronics – correct cooperation with the factory engine controller and SCR system.
• Stable operating parameters of the NOx reduction system – proper pressure and medium flow across the entire load range.
• Reduced risk of failures related to incorrect AdBlue dosing.
• Maintenance of factory exhaust emission characteristics, which is important for technical inspections and diagnostic tests.

By using an original component, the structural integrity of the exhaust system is maintained, as well as compatibility with the factory control software, which limits the need for additional adaptations.

Technical and operational characteristics

The offered Mercedes W213 C257 Diesel AdBlue Additive Fuel Tank Reservoir belongs to the group of Exhaust gas cleaning parts, designed specifically for Mercedes diesel engines. The design provides for cooperation with a diesel fuel system, taking into account the typical operating conditions of these units – frequent starts, operation in low temperatures, and variable loads.

The element is adapted for installation at factory mounting points in the vehicle chassis, which facilitates service and shortens replacement time. Using a dedicated reservoir allows for maintaining the correct geometry of line routing and proper system venting, which is important for the durability of the entire system.

Condition, verification, and practical application

The product is offered as a used part, which is a cost-effective solution while maintaining the manufacturer's original specifications. Such components are frequently used both in routine repairs and in restoring full efficiency to vehicles used intensively in fleets or intercity transport.

In the case of upgrading or repairing the AdBlue system in Mercedes W213 and C257 models, it is worth paying attention to the compatibility of the used reservoir with the engine type and exhaust system configuration. A correctly selected element helps avoid problems with adaptation, engine controller errors, and improper operation of the exhaust gas cleaning system.

If you are planning a comprehensive repair or upgrade of the exhaust gas cleaning area in your Mercedes and need other elements from the same group, such as additive reservoirs, dosing modules, or AdBlue system lines, check the available parts in the Mercedes exhaust gas cleaning parts category.

Support for vehicle restoration and modernization

The Mercedes W213 C257 Diesel AdBlue Additive Fuel Tank Reservoir will also work well in projects for refreshing and maintaining newer youngtimers with diesel engines in good condition. Properly selected, used exhaust gas cleaning system components allow for cost reduction while maintaining the original operating characteristics of the power unit.

If you are planning a wider restoration of your Mercedes or another premium car and want to better understand how to effectively use used components in such projects, it is worth reading the guide: The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years.